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package org.glassfish.enterprise.iiop.api;

import org.glassfish.api.naming.NamespacePrefixes;
import org.glassfish.api.naming.NamedNamingObjectProxy;

import org.jvnet.hk2.annotations.Service;
import jakarta.inject.Inject;

import jakarta.ejb.spi.HandleDelegate;

import jakarta.inject.Provider;
import javax.naming.NamingException;

/**
 * Proxy for java:comp/ORB lookups
 *
 *
 * @author Ken Saks
 */
@Service
@NamespacePrefixes(HandleDelegateNamingProxy.HANDLE_DELEGATE)
public class HandleDelegateNamingProxy implements NamedNamingObjectProxy {

    static final String HANDLE_DELEGATE
            = "java:comp/HandleDelegate";

    @Inject
    private Provider<HandleDelegateFacade> handleDelegateFacadeProvider;

    private volatile HandleDelegateFacade facade;

    public Object handle(String name) throws NamingException {

        HandleDelegate delegate = null;

        if (HANDLE_DELEGATE.equals(name)) {
            try {
                if (facade == null) {
                    HandleDelegateFacade hd = handleDelegateFacadeProvider.get();
                    facade = hd;
                }
                delegate = facade.getHandleDelegate();

            } catch(Throwable t) {
                NamingException ne = new NamingException
                        ("Error resolving java:comp/HandleDelegate lookup");
                ne.initCause(t);
                throw ne;
            }
        }

        return delegate;
    }


}
